McQueen said it best......keep it simple. A built 302 with a great exhaust is about all ya need to keep anyone at bay at a stoplight unless your cruzin woodward.
That don't look like any 392 hemi I'm used to! You want a hemi that was made by Ford,get an SOHC 427!!! You'll be very happy with it! I forgot to mention,it will cost you more than the governments deficit!